Order ##704525 - Frsky Twin Lite Pro 2.4ghz Tx Module (Accst, Access, Elrs, Tw) - Very low range critical rssi

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1

Order Number: #704525
Product Name: Frsky Twin Lite Pro 2.4ghz Tx Module (Accst, Access, Elrs, Tw)
Brand: Frsky
I think the module might be faulty as critical rssi warnings are announced at approx 250m even with 500mW power setting.
The module was flashed to the latest firmware yesterday v3.0.1 and the first chance to go flying was today. The range check seemed about right.
The time before when I went flying everything seemed to function correctly.
In case it was a firmware issue, I re-flashed it back to v1.0.7 . I do not remember if that was the version it was previously though.
I have a ImmersionRC RF Power Meter v2. The output from one of the antennas seems very low. 0-4dB while the other antenna outputs 15-19dB.
I swapped the antennas around but it made no difference to the side that was low output.

I made a couple of videos, one with the TW module antennas mounted on my FrSky X20Pro external connectors showing the rf output from both the FSK and Lora sides of approx 11-12dB. I then did another video and put the antennas back onto the TW module and mounted the module on my FrSky XE. Again I used the strength meter to check the FSK & Lora outputs. One side was at 11-12dB gain and the other side was at -3dB.

I would have put the videos up on the next page but they were both much bigger than 20Mb.

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Image Description3024×4032 1.82 MB

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Image Description3024×4032 2.38 MB

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Image Description3024×4032 1.98 MB

2

Sorry to hear about this issue, I have sent a request to the manufacturer engineering team to get some feedback and possible solutions to this issue and will update you as soon as they reply. If you need any updates in the meantime, please let me know. We usually get a reply back within 1-2 working days (Mon-Friday)

How would you rate our customer service?

Kind Regards

Alex

Unmanned Tech Support

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3

Hi, after talking with Frsky they have confirmed that the unit has been tested before dispatch, so if you could double check to see if the antenna may be damaged by swapping them around, but otherwise I think its best to return the unit back to us for replacement. I will send you a separate email with the RMA details to the same email you used on your order.